Use Actor Model to Build Simpler Systems with Better Performance and ScalabilityReflecting his own cutting-edge work, veteran software engineer Vaughn Vernon shows architects and developers how to translate the longtime promises of Actor model into practical reality. First, he introduces the tenets of reactive software, and shows how the message-driven Actor model addresses all of them–making it possible to build systems that are more responsive, resilient, and elastic. Next, he presents a practical Scala bootstrap tutorial, a thorough introduction to Akka and Akka Cluster, and a full chapter on maximizing performance and scalability with Scala and Akka.

The Scrumban [R]Evolution: Getting the Most Out of Agile, Scrum, and Lean Kanban

Comprehensive, coherent, and practical, The Scrumban [R]Evolution will help you incrementally apply proven Lean/Agile principles to get what matters most: pragmatic, bottom-line results. Pioneering Scrumban coach Ajay Reddy clarifies Scrumban's core concepts and principles, and illuminates their application through real-life examples. He takes you from the absolute basics through sustainable adoption, and from choosing metrics to advanced forecasting and adaptive management.

With its Apple Watch and WatchKit framework, Apple is challenging developers to build exciting and innovative apps for Apple Watch. iOS developers who master Apple Watch programming now will have the same huge “early mover” advantage that early iPhone developers enjoyed. Learning WatchKit Programming is a complete, hands-on tutorial for all iOS developers who are ready to design and build tomorrow’s hottest new wearable apps.